CVE-2025-53628— cpp-httplib does not limit the length of a line
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I. Basic Information for CVE-2025-53628
Vulnerability Information
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Vulnerability Title
cpp-httplib does not limit the length of a line
Source: NVD (National Vulnerability Database)
Vulnerability Description
cpp-httplib is a C++11 single-file header-only cross platform HTTP/HTTPS library. Prior to 0.20.1, cpp-httplib does not have a limit for a unique line, permitting an attacker to explore this to allocate memory arbitrarily. This vulnerability is fixed in 0.20.1. NOTE: This vulnerability is related to CVE-2025-53629.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
不可达退出条件的循环(无限循环)
Source: NVD (National Vulnerability Database)
Vulnerability Title
cpp-httplib 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
cpp-httplib是yhirose个人开发者的一款使用C++语言编写的HTTP/HTTPS服务器和客户端库。 cpp-httplib 0.20.1之前版本存在安全漏洞，该漏洞源于未限制唯一行长度，可能导致任意内存分配。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| yhirose | cpp-httplib | < 0.20.1 | - |
II. Public POCs for CVE-2025-53628
| # | POC Description | Source Link | Shenlong Link |
|---|
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IV. Related Vulnerabilities
Same product: cpp-httplib
- CVE-2026-34441
cpp-httplib: HTTP Request Smuggling via Unconsumed GET Reque - CVE-2026-33745
cpp-httplib Client Leaks Authentication Credentials to Untru - CVE-2026-32627
cpp-httplib has a Silent TLS Certificate Verification Bypass - CVE-2026-31870
cpp-httplib Affected by Remote Process Crash via Malformed C - CVE-2026-29076
cpp-httplib: Stack Overflow Denial of Service (DoS) via std:
Same vendor: yhirose
- CVE-2026-34441
cpp-httplib: HTTP Request Smuggling via Unconsumed GET Reque - CVE-2026-33745
cpp-httplib Client Leaks Authentication Credentials to Untru - CVE-2026-32627
cpp-httplib has a Silent TLS Certificate Verification Bypass - CVE-2026-31870
cpp-httplib Affected by Remote Process Crash via Malformed C - CVE-2026-29076
cpp-httplib: Stack Overflow Denial of Service (DoS) via std:
Same weakness: CWE-835
- CVE-2026-42310
Pillow: PDF Parsing Trailer Infinite Loop (DoS) - CVE-2026-41511
OpenMcdf has an Infinite loop DoS via crafted CFB directory - CVE-2026-5407
Loop with Unreachable Exit Condition ('Infinite Loop') in Wi - CVE-2026-6536
Loop with Unreachable Exit Condition ('Infinite Loop') in Wi - CVE-2026-6534
Loop with Unreachable Exit Condition ('Infinite Loop') in Wi
V. Comments for CVE-2025-53628
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